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Thread: Some nice presents in the post.

  1. #76
    Me? Post? Never! Club Member mwilkinson's Avatar
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    Some more parts through. I already had the ABS sensors awhile back. I've bought new hubs, bearings, flanges etc.. I'm awaiting another order with the remaining new boots and hand brake shoe parts.

    I also still need to send the dust shields off for powder coating.

    _IMG_000000_000000.jpg

    _IMG_000000_000000.jpg

    I've also reassembled a chunk of the rear subframe. All new parts except for the handbrake cable brackets that I media blasted and repainted.

    _IMG_000000_000000.jpg

    I think this might be the slowest rebuild in Supra history

    Project Imperceptible?
    1996 Facelift J-Spec 6spd Single Turbo (600bhp) - Gunmetal
    Sold - 1995 Jspec 6 Speed Manual BPU (Lambo Grigio Avlon)

  2. #77
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    You should noticed the difference on the new bushes and wheel bearings, its like back to the new car stiffness and poise and road noise rumble level.

    Is that greasers you have on the roll bar bushes, never seen that before on a Supra? If it runs into the bush and helps eliminate the conical wear on the roll bar tubing its a well worthwhile mod.

  3. #78
    Me? Post? Never! Club Member mwilkinson's Avatar
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    I've Titan anti-roll bars and these are the bushes and brackets that come with the kit.

    My original Titan bush brackets were suitable for restoration, but Titan offered me a great deal on the replacements. So I bought new.
    Last edited by mwilkinson; 14-08-18 at 08:45.
    1996 Facelift J-Spec 6spd Single Turbo (600bhp) - Gunmetal
    Sold - 1995 Jspec 6 Speed Manual BPU (Lambo Grigio Avlon)

  4. #79
    Work... what work? Club Member
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    Mate you are insane. I must say, hats off. Its a pity some parts can be had/found elsewhere in the world whilst others aren't. I tried ordering a scuttle panel as I don't have one. Toyota say its discontinued. There are few other items like the door outer weather strip moldings I am missing which one only was still available at Toyota. I was getting annoyed repeatedly hearing this so I opted the use of Ebay and FB. I have found alot of the parts but yes, I guess you can't compare oem brand new with oem 2nd hand old or good condition parts.
    Keep it up. The only thing that comes to mind with this thread of yours, don't drive the car once its all fitted and done

  5. #80
    Me? Post? Never! Club Member mwilkinson's Avatar
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    I've ordered some outstanding clips and bolts. But the big ticket items were a set of new UK spec 6 spd drive shafts.

    Big thanks to Paul at TCB for his ability to source the parts for me at very good prices.

    Should be with me by the end on Jan. I may sell my current UK Spec drive shafts, once I know I've ordered the correct replacements.

    I've also had my dust shields and Titan anti-roll bars back from the powder coaters.
    1996 Facelift J-Spec 6spd Single Turbo (600bhp) - Gunmetal
    Sold - 1995 Jspec 6 Speed Manual BPU (Lambo Grigio Avlon)

  6. #81
    Wanting more carbon Club Member The Raven's Avatar
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    Nice nice mate.

    Looking forward to seeing it all put back on
    Dr Jekyll
    dun worry bra. i dont insure my car either , they r all prooer muppets on ere

    We all know this is true
    'Theres nothing worth doing to an NA apart from setting fire to it'

  7. #82
    Me? Post? Never! Club Member mwilkinson's Avatar
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    Thanks Russ. Although it's a long way off from that.

    Hopefully the rear clip will be done in early 2019. Then it's engine out and front subframe refurbishment.

    I'm then going to put the shell on a rotisserie ready for either dipping or media blasting. But that will only be done once the other mechanicals are fully refurbished.
    Last edited by mwilkinson; 08-02-19 at 08:33.
    1996 Facelift J-Spec 6spd Single Turbo (600bhp) - Gunmetal
    Sold - 1995 Jspec 6 Speed Manual BPU (Lambo Grigio Avlon)

  8. #83
    Me? Post? Never! Club Member mwilkinson's Avatar
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    I've bought myself a home electroplating setup (classic plating). All in it's about 400 including the bench power supply and ancillary aquarium heaters etc.

    The zinc plating part is very straight forward and I could yield some very good results with little effort from the start.

    Getting the passivate to work properly was another matter. It's quite temperature sensitive, as in you'll get a colour on the metal at any temperature, but the coating will be mixed and often comes away.

    I found heating it to 25 degrees to be key. Also only 5 seconds of immersion produces a very good colour. Post application I dry the piece with a cold compressed air to reduce any retained water on the surface of the piece. Then it just gets dried in front of a hot electric fan.

    I've mainly been messing around. Here are some of the results.

    _IMG_000000_000000.jpg

    _IMG_000000_000000.jpg

    I also have a blue passivate and black passivate kit to try.

    I will be limiting the parts I plate and use to non structural ones due to concerns over hydrogen embrittlement. I'm currently looking at getting an oven to bake the parts to assist in reducing concerns over any embrittlement.

    It has taken a bit to get this going but once setup it's quite a simple process and through the course of renovating the whole car, will undoubtably save me money.
    1996 Facelift J-Spec 6spd Single Turbo (600bhp) - Gunmetal
    Sold - 1995 Jspec 6 Speed Manual BPU (Lambo Grigio Avlon)

  9. #84
    I'm addicted now! Club Member
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    Quote Originally Posted by mwilkinson View Post
    I'm currently looking at getting an oven to bake the parts to assist in reducing concerns over any embrittlement.
    Annealing should ideally be done shortly after whatever process has been applied to the metal you're worried about. Hydrogen assisted cracking will happen faster (and at colder temperatures) when the concentration gradient is high (as it will be with a coating).

  10. #85
    Me? Post? Never! Club Member mwilkinson's Avatar
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    Quote Originally Posted by el_bandido View Post
    Annealing should ideally be done shortly after whatever process has been applied to the metal you're worried about. Hydrogen assisted cracking will happen faster (and at colder temperatures) when the concentration gradient is high (as it will be with a coating).
    Sorry, I wasn't clear in my original post. Such a process wasn't for those parts already subject to the plating, but on those to be done in the future.

    These were simply test pieces.
    Last edited by mwilkinson; 11-02-19 at 18:32.
    1996 Facelift J-Spec 6spd Single Turbo (600bhp) - Gunmetal
    Sold - 1995 Jspec 6 Speed Manual BPU (Lambo Grigio Avlon)

  11. #86
    I'm addicted now! Club Member
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    ah, fair enough. Just thought I'd let you know in case you'd left stuff sitting for a long time.

  12. #87
    Me? Post? Never! Club Member mwilkinson's Avatar
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    Quote Originally Posted by el_bandido View Post
    ah, fair enough. Just thought I'd let you know in case you'd left stuff sitting for a long time.
    You seem to know about this, so let me ask you about embrittlement in general. From what I've been reading it is only of significance in high tensile steels, spring steels and alloys.

    How significant is the risk of embrittlement in such a process on mild steel brackets and bolts?
    1996 Facelift J-Spec 6spd Single Turbo (600bhp) - Gunmetal
    Sold - 1995 Jspec 6 Speed Manual BPU (Lambo Grigio Avlon)

  13. #88
    I'm addicted now! Club Member
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    To be honest, I'm not the best person to ask... My knowledge of it applies largely to the context of nuclear reactors, the conditions under which different types of corrosion/cracking occur for various types of steel and occasionally titanium. I just remember some elements of hydrogen assisted cracking and annealing in different materials. It's been a few years since I really applied any of this knowledge but here are the basic points:

    - stainless steels are naturally resistant to hydrogen embrittlement
    - I wouldn't expect it to be a huge issue for stuff on a car that's exposed to atmospheric conditions most of the time; for hydrogen assisted cracking to be a real issue, you'd need to expose the parts to elemental or molecular hydrogen (so basically acidic conditions).
    - Electroplating will actually be the main cause of the problem as far as hydrogen assisted cracking is concerned, as you get molecular/elemental hydrogen forming at the metal boundary during the plating process - that's why I mentioned annealing it fairly quickly after you've done the electroplating work.
    - Tensile stress will exacerbate the hydrogen assisted cracking process, but unless you've got conditions in which hydrogen is diffusing into the metal and degrading the grain boundaries within the component, this is largely not going to matter.

    I think this is pretty much a non-issue to be honest, just anneal the stuff you electroplate within a few hours and you'll be fine. Mechanical failure of bolts and brackets is going to come from other forms of corrosion or stress fracture to be perfectly honest.

  14. #89
    Me? Post? Never! Club Member mwilkinson's Avatar
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    Thanks for the info.

    I'm going to continue to research this. I am tempted to see if I can find somewhere that can undertake some tests on a few of the bolts I've done to see what impact the electroplating and pre pickling process has had on the parts.
    1996 Facelift J-Spec 6spd Single Turbo (600bhp) - Gunmetal
    Sold - 1995 Jspec 6 Speed Manual BPU (Lambo Grigio Avlon)

  15. #90
    Me? Post? Never! Club Member mwilkinson's Avatar
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    So the items I ordered before Christmas arrived. Mainly a heat shield and the two new drive shafts. I also got an assortment of bolts and grommets for the rear end I was missing.

    Thankfully the drive shafts look the correct size and have the ABS inductor rings.

    _IMG_000000_000000.jpg

    _IMG_000000_000000.jpg

    _IMG_000000_000000.jpg

    _IMG_000000_000000.jpg
    1996 Facelift J-Spec 6spd Single Turbo (600bhp) - Gunmetal
    Sold - 1995 Jspec 6 Speed Manual BPU (Lambo Grigio Avlon)

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